Home / 85,961.70-118,621.20-47,718.24

Finding the Fourth Proportional to 85,961.70, 118,621.20 and 47,718.24

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Solution

The fourth proportional to 85,961.70, 118,621.20 and 47,718.24 is: 65,847.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,961.70 : 118,621.20 = 47,718.24 : x
  2. Step 2: Convert to fraction form
    85,961.70/118,621.20 = 47,718.24/x
  3. Step 3: Cross multiply
    85,961.70x = 118,621.20 × 47,718.24
  4. Step 4: Simplify right side
    85,961.70x = 5,660,394,890.69
  5. Step 5: Solve for x
    x = 5,660,394,890.69/85,961.70
  6. Step 6: Final answer
    x = 65,847.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.